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AQA A LEVEL CHEM PRACTICALS - PAPER 3
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9

May 2025

2024/2025

A+
Acid-base titration - correct answer- pipette 25cm³ acid and add indicatir, place beaker on a magnetic stirrer and place magnet in the beaker, fill burette with base - rinse electrode with distilled water as readings may have changed over time, dip it into the acid in the beaker, recording pH -switch on stirrer and ensure magnet doesnt strike the electrode. - add 5cm³ base and take readings of pH and indicator - continue adding base taking 5cm³ readings each time then 1cm³ around end poi...
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